The torque transmitted by a hollow shaft of outer diameter (D) and inner diameter (d)
(a)π/4fs(D2-d2)/D
(b) π/4fs(D3-d3)/D  
(c) π/4fs(D4-d4)/D  
(d) π/4fs(D4-d4)/D

1 Answer

Answer :

(c) π/4fs(D4-d4)/D

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